Q: Is 279,939 a Prime Number?
A: No, 279,939 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 279939 can be evenly divided by 1 3 11 17 33 51 187 499 561 1,497 5,489 8,483 16,467 25,449 93,313 and 279,939, with no remainder.
Since 279,939 cannot be divided by just 1 and 279,939, it is not a prime number.